Table 1 Characteristic of respondents

Number (%)

1,420

979 (68.9%)

441 (31.1%)

Age group

0.18

30-39

475 (33.4%)

338 (34.5%)

137 (31.1%)

40-49

474 (33.4%)

312 (31.9%)

162 (36.7%)

50-59

471 (33.2%)

329 (33.6%)

142 (32.2%)

Marital status

0.86

Married

1,000 (70.4%)

688 (70.3%)

312 (70.7%)

Unmarried

420 (29.6%)

291 (29.7%)

129 (29.3%)

Educational level

0.36

Junior high/

high school

330 (23.2%)

219 (22.4%)

111 (25.2%)

2-year college

176 (12.4%)

118 (12.1%)

58 (13.2%)

4-year college/

graduate school

914 (64.4%)

642 (65.5%)

272 (61.6%)

Job status

0.77

Full-time job

1,306 (92.0%)

899 (91.8%)

407 (92.3%)

Not full-time job

114 (8.0%)

80 (8.2%)

34 (7.7%)

Household income

0.65

<5,000,000 yen

488 (34.4%)

343 (35.0%)

145 (32.9%)

<10,000,000 yen

706 (49.7%)

481 (49.1%)

225 (51.0%)

>10,000,000 yen

226 (15.9%)

155 (15.9%)

71 (16.1%)

Total PA

0.16

150min +

815 (57.4%)

668 (58.6%)

241 (54.6%)

<150min

605 (42.6%)

574 (41.4%)

200 (45.4%)